Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, 610054, Chengdu, China.
Max Planck Institute for Polymer Research, 55128, Mainz, Germany.
Nat Commun. 2018 Sep 21;9(1):3842. doi: 10.1038/s41467-018-06180-7.
Most surfaces are either static or switchable only between "on" and "off" states for a specific application. It is a challenge to develop reconfigurable surfaces that can adapt to rapidly changing environments or applications. Here, we demonstrate fabrication of surfaces that can be reconfigured for user-defined functions using visible-light-controlled Ru-thioether coordination chemistry. We modify substrates with Ru complex Ru-HO. To endow a Ru-HO-modified substrate with a certain function, a functional thioether ligand is immobilized on the substrate via Ru-thioether coordination. To change the surface function, the immobilized thioether ligand is cleaved from the substrate by visible-light-induced ligand dissociation, and then another thioether ligand with a distinct function is immobilized on the substrate. Different thioethers endow the surface with different functions. Based on this strategy, we rewrite surface patterns, manipulate protein adsorption, and control surface wettability. This strategy enables the fabrication of reconfigurable surfaces with customizable functions on demand.
大多数表面要么是静态的，要么只能在特定应用中在“开”和“关”状态之间切换。开发能够适应快速变化的环境或应用的可重构表面是一项挑战。在这里，我们展示了使用可见光控制的钌硫醚配位化学来制造可重新配置为用户定义功能的表面。我们使用 Ru-HO 对基底进行修饰。为了使 Ru-HO 修饰的基底具有某种功能，通过 Ru-硫醚配位将功能性硫醚配体固定在基底上。为了改变表面功能，通过可见光诱导的配体解离将固定在基底上的硫醚配体从基底上切断，然后将具有不同功能的另一种硫醚配体固定在基底上。不同的硫醚赋予表面不同的功能。基于这一策略，我们重写了表面图案，操纵蛋白质吸附，并控制表面润湿性。这种策略使得能够按需制造具有定制功能的可重构表面。
